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Finding the Fourth Proportional to 358.58, 534.97 and 306.62

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Solution

The fourth proportional to 358.58, 534.97 and 306.62 is: 457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.58 : 534.97 = 306.62 : x
  2. Step 2: Convert to fraction form
    358.58/534.97 = 306.62/x
  3. Step 3: Cross multiply
    358.58x = 534.97 × 306.62
  4. Step 4: Simplify right side
    358.58x = 164,032.50
  5. Step 5: Solve for x
    x = 164,032.50/358.58
  6. Step 6: Final answer
    x = 457.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.